Historical flows: **Hourly** aggregation don't work for Flow (Byte Chart)

[rmorandell-pgum]

Environment:

• OS name: Oracle Linux 8
• OS version: 8.10
• Architecture: [x86_64] - 64 bit
• ntopng version/revision: v.6.2.250303 rev.25318

What happened:
Historical flows: Hourly aggregation don't work for Flow (Byte Chart) (is working fine for Flows Throughout Chart)
In the Byte Chart for the same period there are no data coming from the REST API

Example for working Hourly in Throughput chart always same time period

When I'm using a timestamp back > One day + 1 hour (90001 sec) is working again.

How did you reproduce it?